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Radeon HD 7790 vs Radeon RX 560

Intro

The Radeon HD 7790 makes use of a 28 nm design. AMD has clocked the core frequency at 1000 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this card. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Compare all of that to the Radeon RX 560, which comes with core clock speeds of 1175 MHz on the GPU, and 7000 MHz on the 4096 MB of GDDR5 RAM. It features 1024 SPUs along with 64 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560 80 Watts
Radeon HD 7790 85 Watts
Difference: 5 Watts (6%)

Memory Bandwidth

As far as performance goes, the Radeon RX 560 should theoretically be a bit superior to the Radeon HD 7790 in general. (explain)

Radeon RX 560 114688 MB/sec
Radeon HD 7790 96000 MB/sec
Difference: 18688 (19%)

Texel Rate

The Radeon RX 560 is much (more or less 34%) better at anisotropic filtering than the Radeon HD 7790. (explain)

Radeon RX 560 75200 Mtexels/sec
Radeon HD 7790 56000 Mtexels/sec
Difference: 19200 (34%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 560 is the winner, though not by far. (explain)

Radeon RX 560 18800 Mpixels/sec
Radeon HD 7790 16000 Mpixels/sec
Difference: 2800 (18%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon HD 7790

Amazon.com

Check prices at:

Radeon RX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 7790 Radeon RX 560
Manufacturer AMD AMD
Year March 2013 May 2017
Code Name Bonaire XT Baffin
Memory 1024 MB 4096 MB
Core Speed 1000 MHz 1175 MHz
Memory Speed 6000 MHz 28000 MHz
Power (Max TDP) 85 watts 80 watts
Bandwidth 96000 MB/sec 114688 MB/sec
Texel Rate 56000 Mtexels/sec 75200 Mtexels/sec
Pixel Rate 16000 Mpixels/sec 18800 Mpixels/sec
Unified Shaders 896 1024
Texture Mapping Units 56 64
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 28 nm 14 nm
Transistors 2080 million 3000 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.1 DirectX 12.0
OpenGL Version OpenGL 4.3 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transported past the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 7790

Amazon.com

Check prices at:

Radeon RX 560

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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